Finding the Fourth Proportional to 4,789,390.23, 7,180,270.71 and 2,765,338.20
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Solution
The fourth proportional to 4,789,390.23, 7,180,270.71 and 2,765,338.20 is: 4,145,804.77
Step by Step Solution
- Step 1: Write the proportion equation
4,789,390.23 : 7,180,270.71 = 2,765,338.20 : x - Step 2: Convert to fraction form
4,789,390.23/7,180,270.71 = 2,765,338.20/x - Step 3: Cross multiply
4,789,390.23x = 7,180,270.71 × 2,765,338.20 - Step 4: Simplify right side
4,789,390.23x = 19,855,876,880,704.12 - Step 5: Solve for x
x = 19,855,876,880,704.12/4,789,390.23 - Step 6: Final answer
x = 4,145,804.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.